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Finding the Fourth Proportional to 794.69, 1,096.70 and 445.38

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Solution

The fourth proportional to 794.69, 1,096.70 and 445.38 is: 614.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.69 : 1,096.70 = 445.38 : x
  2. Step 2: Convert to fraction form
    794.69/1,096.70 = 445.38/x
  3. Step 3: Cross multiply
    794.69x = 1,096.70 × 445.38
  4. Step 4: Simplify right side
    794.69x = 488,448.25
  5. Step 5: Solve for x
    x = 488,448.25/794.69
  6. Step 6: Final answer
    x = 614.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.